1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * wm8983.c -- WM8983 ALSA SoC Audio driver 4 * 5 * Copyright 2011 Wolfson Microelectronics plc 6 * 7 * Author: Dimitris Papastamos <dp@opensource.wolfsonmicro.com> 8 */ 9 10 #include <linux/module.h> 11 #include <linux/moduleparam.h> 12 #include <linux/init.h> 13 #include <linux/delay.h> 14 #include <linux/pm.h> 15 #include <linux/i2c.h> 16 #include <linux/regmap.h> 17 #include <linux/spi/spi.h> 18 #include <linux/slab.h> 19 #include <sound/core.h> 20 #include <sound/pcm.h> 21 #include <sound/pcm_params.h> 22 #include <sound/soc.h> 23 #include <sound/initval.h> 24 #include <sound/tlv.h> 25 26 #include "wm8983.h" 27 28 static const struct reg_default wm8983_defaults[] = { 29 { 0x01, 0x0000 }, /* R1 - Power management 1 */ 30 { 0x02, 0x0000 }, /* R2 - Power management 2 */ 31 { 0x03, 0x0000 }, /* R3 - Power management 3 */ 32 { 0x04, 0x0050 }, /* R4 - Audio Interface */ 33 { 0x05, 0x0000 }, /* R5 - Companding control */ 34 { 0x06, 0x0140 }, /* R6 - Clock Gen control */ 35 { 0x07, 0x0000 }, /* R7 - Additional control */ 36 { 0x08, 0x0000 }, /* R8 - GPIO Control */ 37 { 0x09, 0x0000 }, /* R9 - Jack Detect Control 1 */ 38 { 0x0A, 0x0000 }, /* R10 - DAC Control */ 39 { 0x0B, 0x00FF }, /* R11 - Left DAC digital Vol */ 40 { 0x0C, 0x00FF }, /* R12 - Right DAC digital vol */ 41 { 0x0D, 0x0000 }, /* R13 - Jack Detect Control 2 */ 42 { 0x0E, 0x0100 }, /* R14 - ADC Control */ 43 { 0x0F, 0x00FF }, /* R15 - Left ADC Digital Vol */ 44 { 0x10, 0x00FF }, /* R16 - Right ADC Digital Vol */ 45 { 0x12, 0x012C }, /* R18 - EQ1 - low shelf */ 46 { 0x13, 0x002C }, /* R19 - EQ2 - peak 1 */ 47 { 0x14, 0x002C }, /* R20 - EQ3 - peak 2 */ 48 { 0x15, 0x002C }, /* R21 - EQ4 - peak 3 */ 49 { 0x16, 0x002C }, /* R22 - EQ5 - high shelf */ 50 { 0x18, 0x0032 }, /* R24 - DAC Limiter 1 */ 51 { 0x19, 0x0000 }, /* R25 - DAC Limiter 2 */ 52 { 0x1B, 0x0000 }, /* R27 - Notch Filter 1 */ 53 { 0x1C, 0x0000 }, /* R28 - Notch Filter 2 */ 54 { 0x1D, 0x0000 }, /* R29 - Notch Filter 3 */ 55 { 0x1E, 0x0000 }, /* R30 - Notch Filter 4 */ 56 { 0x20, 0x0038 }, /* R32 - ALC control 1 */ 57 { 0x21, 0x000B }, /* R33 - ALC control 2 */ 58 { 0x22, 0x0032 }, /* R34 - ALC control 3 */ 59 { 0x23, 0x0000 }, /* R35 - Noise Gate */ 60 { 0x24, 0x0008 }, /* R36 - PLL N */ 61 { 0x25, 0x000C }, /* R37 - PLL K 1 */ 62 { 0x26, 0x0093 }, /* R38 - PLL K 2 */ 63 { 0x27, 0x00E9 }, /* R39 - PLL K 3 */ 64 { 0x29, 0x0000 }, /* R41 - 3D control */ 65 { 0x2A, 0x0000 }, /* R42 - OUT4 to ADC */ 66 { 0x2B, 0x0000 }, /* R43 - Beep control */ 67 { 0x2C, 0x0033 }, /* R44 - Input ctrl */ 68 { 0x2D, 0x0010 }, /* R45 - Left INP PGA gain ctrl */ 69 { 0x2E, 0x0010 }, /* R46 - Right INP PGA gain ctrl */ 70 { 0x2F, 0x0100 }, /* R47 - Left ADC BOOST ctrl */ 71 { 0x30, 0x0100 }, /* R48 - Right ADC BOOST ctrl */ 72 { 0x31, 0x0002 }, /* R49 - Output ctrl */ 73 { 0x32, 0x0001 }, /* R50 - Left mixer ctrl */ 74 { 0x33, 0x0001 }, /* R51 - Right mixer ctrl */ 75 { 0x34, 0x0039 }, /* R52 - LOUT1 (HP) volume ctrl */ 76 { 0x35, 0x0039 }, /* R53 - ROUT1 (HP) volume ctrl */ 77 { 0x36, 0x0039 }, /* R54 - LOUT2 (SPK) volume ctrl */ 78 { 0x37, 0x0039 }, /* R55 - ROUT2 (SPK) volume ctrl */ 79 { 0x38, 0x0001 }, /* R56 - OUT3 mixer ctrl */ 80 { 0x39, 0x0001 }, /* R57 - OUT4 (MONO) mix ctrl */ 81 { 0x3D, 0x0000 }, /* R61 - BIAS CTRL */ 82 }; 83 84 /* vol/gain update regs */ 85 static const int vol_update_regs[] = { 86 WM8983_LEFT_DAC_DIGITAL_VOL, 87 WM8983_RIGHT_DAC_DIGITAL_VOL, 88 WM8983_LEFT_ADC_DIGITAL_VOL, 89 WM8983_RIGHT_ADC_DIGITAL_VOL, 90 WM8983_LOUT1_HP_VOLUME_CTRL, 91 WM8983_ROUT1_HP_VOLUME_CTRL, 92 WM8983_LOUT2_SPK_VOLUME_CTRL, 93 WM8983_ROUT2_SPK_VOLUME_CTRL, 94 WM8983_LEFT_INP_PGA_GAIN_CTRL, 95 WM8983_RIGHT_INP_PGA_GAIN_CTRL 96 }; 97 98 struct wm8983_priv { 99 struct regmap *regmap; 100 u32 sysclk; 101 u32 bclk; 102 }; 103 104 static const struct { 105 int div; 106 int ratio; 107 } fs_ratios[] = { 108 { 10, 128 }, 109 { 15, 192 }, 110 { 20, 256 }, 111 { 30, 384 }, 112 { 40, 512 }, 113 { 60, 768 }, 114 { 80, 1024 }, 115 { 120, 1536 } 116 }; 117 118 static const int srates[] = { 48000, 32000, 24000, 16000, 12000, 8000 }; 119 120 static const int bclk_divs[] = { 121 1, 2, 4, 8, 16, 32 122 }; 123 124 static int eqmode_get(struct snd_kcontrol *kcontrol, 125 struct snd_ctl_elem_value *ucontrol); 126 static int eqmode_put(struct snd_kcontrol *kcontrol, 127 struct snd_ctl_elem_value *ucontrol); 128 129 static const DECLARE_TLV_DB_SCALE(dac_tlv, -12700, 50, 1); 130 static const DECLARE_TLV_DB_SCALE(adc_tlv, -12700, 50, 1); 131 static const DECLARE_TLV_DB_SCALE(out_tlv, -5700, 100, 0); 132 static const DECLARE_TLV_DB_SCALE(lim_thresh_tlv, -600, 100, 0); 133 static const DECLARE_TLV_DB_SCALE(lim_boost_tlv, 0, 100, 0); 134 static const DECLARE_TLV_DB_SCALE(alc_min_tlv, -1200, 600, 0); 135 static const DECLARE_TLV_DB_SCALE(alc_max_tlv, -675, 600, 0); 136 static const DECLARE_TLV_DB_SCALE(alc_tar_tlv, -2250, 150, 0); 137 static const DECLARE_TLV_DB_SCALE(pga_vol_tlv, -1200, 75, 0); 138 static const DECLARE_TLV_DB_SCALE(boost_tlv, -1200, 300, 1); 139 static const DECLARE_TLV_DB_SCALE(eq_tlv, -1200, 100, 0); 140 static const DECLARE_TLV_DB_SCALE(aux_tlv, -1500, 300, 0); 141 static const DECLARE_TLV_DB_SCALE(bypass_tlv, -1500, 300, 0); 142 static const DECLARE_TLV_DB_SCALE(pga_boost_tlv, 0, 2000, 0); 143 144 static const char *alc_sel_text[] = { "Off", "Right", "Left", "Stereo" }; 145 static SOC_ENUM_SINGLE_DECL(alc_sel, WM8983_ALC_CONTROL_1, 7, alc_sel_text); 146 147 static const char *alc_mode_text[] = { "ALC", "Limiter" }; 148 static SOC_ENUM_SINGLE_DECL(alc_mode, WM8983_ALC_CONTROL_3, 8, alc_mode_text); 149 150 static const char *filter_mode_text[] = { "Audio", "Application" }; 151 static SOC_ENUM_SINGLE_DECL(filter_mode, WM8983_ADC_CONTROL, 7, 152 filter_mode_text); 153 154 static const char *eq_bw_text[] = { "Narrow", "Wide" }; 155 static const char *eqmode_text[] = { "Capture", "Playback" }; 156 static SOC_ENUM_SINGLE_EXT_DECL(eqmode, eqmode_text); 157 158 static const char *eq1_cutoff_text[] = { 159 "80Hz", "105Hz", "135Hz", "175Hz" 160 }; 161 static SOC_ENUM_SINGLE_DECL(eq1_cutoff, WM8983_EQ1_LOW_SHELF, 5, 162 eq1_cutoff_text); 163 static const char *eq2_cutoff_text[] = { 164 "230Hz", "300Hz", "385Hz", "500Hz" 165 }; 166 static SOC_ENUM_SINGLE_DECL(eq2_bw, WM8983_EQ2_PEAK_1, 8, eq_bw_text); 167 static SOC_ENUM_SINGLE_DECL(eq2_cutoff, WM8983_EQ2_PEAK_1, 5, eq2_cutoff_text); 168 static const char *eq3_cutoff_text[] = { 169 "650Hz", "850Hz", "1.1kHz", "1.4kHz" 170 }; 171 static SOC_ENUM_SINGLE_DECL(eq3_bw, WM8983_EQ3_PEAK_2, 8, eq_bw_text); 172 static SOC_ENUM_SINGLE_DECL(eq3_cutoff, WM8983_EQ3_PEAK_2, 5, eq3_cutoff_text); 173 static const char *eq4_cutoff_text[] = { 174 "1.8kHz", "2.4kHz", "3.2kHz", "4.1kHz" 175 }; 176 static SOC_ENUM_SINGLE_DECL(eq4_bw, WM8983_EQ4_PEAK_3, 8, eq_bw_text); 177 static SOC_ENUM_SINGLE_DECL(eq4_cutoff, WM8983_EQ4_PEAK_3, 5, eq4_cutoff_text); 178 static const char *eq5_cutoff_text[] = { 179 "5.3kHz", "6.9kHz", "9kHz", "11.7kHz" 180 }; 181 static SOC_ENUM_SINGLE_DECL(eq5_cutoff, WM8983_EQ5_HIGH_SHELF, 5, 182 eq5_cutoff_text); 183 184 static const char *depth_3d_text[] = { 185 "Off", 186 "6.67%", 187 "13.3%", 188 "20%", 189 "26.7%", 190 "33.3%", 191 "40%", 192 "46.6%", 193 "53.3%", 194 "60%", 195 "66.7%", 196 "73.3%", 197 "80%", 198 "86.7%", 199 "93.3%", 200 "100%" 201 }; 202 static SOC_ENUM_SINGLE_DECL(depth_3d, WM8983_3D_CONTROL, 0, 203 depth_3d_text); 204 205 static const struct snd_kcontrol_new wm8983_snd_controls[] = { 206 SOC_SINGLE("Digital Loopback Switch", WM8983_COMPANDING_CONTROL, 207 0, 1, 0), 208 209 SOC_ENUM("ALC Capture Function", alc_sel), 210 SOC_SINGLE_TLV("ALC Capture Max Volume", WM8983_ALC_CONTROL_1, 211 3, 7, 0, alc_max_tlv), 212 SOC_SINGLE_TLV("ALC Capture Min Volume", WM8983_ALC_CONTROL_1, 213 0, 7, 0, alc_min_tlv), 214 SOC_SINGLE_TLV("ALC Capture Target Volume", WM8983_ALC_CONTROL_2, 215 0, 15, 0, alc_tar_tlv), 216 SOC_SINGLE("ALC Capture Attack", WM8983_ALC_CONTROL_3, 0, 10, 0), 217 SOC_SINGLE("ALC Capture Hold", WM8983_ALC_CONTROL_2, 4, 10, 0), 218 SOC_SINGLE("ALC Capture Decay", WM8983_ALC_CONTROL_3, 4, 10, 0), 219 SOC_ENUM("ALC Mode", alc_mode), 220 SOC_SINGLE("ALC Capture NG Switch", WM8983_NOISE_GATE, 221 3, 1, 0), 222 SOC_SINGLE("ALC Capture NG Threshold", WM8983_NOISE_GATE, 223 0, 7, 1), 224 225 SOC_DOUBLE_R_TLV("Capture Volume", WM8983_LEFT_ADC_DIGITAL_VOL, 226 WM8983_RIGHT_ADC_DIGITAL_VOL, 0, 255, 0, adc_tlv), 227 SOC_DOUBLE_R("Capture PGA ZC Switch", WM8983_LEFT_INP_PGA_GAIN_CTRL, 228 WM8983_RIGHT_INP_PGA_GAIN_CTRL, 7, 1, 0), 229 SOC_DOUBLE_R_TLV("Capture PGA Volume", WM8983_LEFT_INP_PGA_GAIN_CTRL, 230 WM8983_RIGHT_INP_PGA_GAIN_CTRL, 0, 63, 0, pga_vol_tlv), 231 232 SOC_DOUBLE_R_TLV("Capture PGA Boost Volume", 233 WM8983_LEFT_ADC_BOOST_CTRL, WM8983_RIGHT_ADC_BOOST_CTRL, 234 8, 1, 0, pga_boost_tlv), 235 236 SOC_DOUBLE("ADC Inversion Switch", WM8983_ADC_CONTROL, 0, 1, 1, 0), 237 SOC_SINGLE("ADC 128x Oversampling Switch", WM8983_ADC_CONTROL, 8, 1, 0), 238 239 SOC_DOUBLE_R_TLV("Playback Volume", WM8983_LEFT_DAC_DIGITAL_VOL, 240 WM8983_RIGHT_DAC_DIGITAL_VOL, 0, 255, 0, dac_tlv), 241 242 SOC_SINGLE("DAC Playback Limiter Switch", WM8983_DAC_LIMITER_1, 8, 1, 0), 243 SOC_SINGLE("DAC Playback Limiter Decay", WM8983_DAC_LIMITER_1, 4, 10, 0), 244 SOC_SINGLE("DAC Playback Limiter Attack", WM8983_DAC_LIMITER_1, 0, 11, 0), 245 SOC_SINGLE_TLV("DAC Playback Limiter Threshold", WM8983_DAC_LIMITER_2, 246 4, 7, 1, lim_thresh_tlv), 247 SOC_SINGLE_TLV("DAC Playback Limiter Boost Volume", WM8983_DAC_LIMITER_2, 248 0, 12, 0, lim_boost_tlv), 249 SOC_DOUBLE("DAC Inversion Switch", WM8983_DAC_CONTROL, 0, 1, 1, 0), 250 SOC_SINGLE("DAC Auto Mute Switch", WM8983_DAC_CONTROL, 2, 1, 0), 251 SOC_SINGLE("DAC 128x Oversampling Switch", WM8983_DAC_CONTROL, 3, 1, 0), 252 253 SOC_DOUBLE_R_TLV("Headphone Playback Volume", WM8983_LOUT1_HP_VOLUME_CTRL, 254 WM8983_ROUT1_HP_VOLUME_CTRL, 0, 63, 0, out_tlv), 255 SOC_DOUBLE_R("Headphone Playback ZC Switch", WM8983_LOUT1_HP_VOLUME_CTRL, 256 WM8983_ROUT1_HP_VOLUME_CTRL, 7, 1, 0), 257 SOC_DOUBLE_R("Headphone Switch", WM8983_LOUT1_HP_VOLUME_CTRL, 258 WM8983_ROUT1_HP_VOLUME_CTRL, 6, 1, 1), 259 260 SOC_DOUBLE_R_TLV("Speaker Playback Volume", WM8983_LOUT2_SPK_VOLUME_CTRL, 261 WM8983_ROUT2_SPK_VOLUME_CTRL, 0, 63, 0, out_tlv), 262 SOC_DOUBLE_R("Speaker Playback ZC Switch", WM8983_LOUT2_SPK_VOLUME_CTRL, 263 WM8983_ROUT2_SPK_VOLUME_CTRL, 7, 1, 0), 264 SOC_DOUBLE_R("Speaker Switch", WM8983_LOUT2_SPK_VOLUME_CTRL, 265 WM8983_ROUT2_SPK_VOLUME_CTRL, 6, 1, 1), 266 267 SOC_SINGLE("OUT3 Switch", WM8983_OUT3_MIXER_CTRL, 268 6, 1, 1), 269 270 SOC_SINGLE("OUT4 Switch", WM8983_OUT4_MONO_MIX_CTRL, 271 6, 1, 1), 272 273 SOC_SINGLE("High Pass Filter Switch", WM8983_ADC_CONTROL, 8, 1, 0), 274 SOC_ENUM("High Pass Filter Mode", filter_mode), 275 SOC_SINGLE("High Pass Filter Cutoff", WM8983_ADC_CONTROL, 4, 7, 0), 276 277 SOC_DOUBLE_R_TLV("Aux Bypass Volume", 278 WM8983_LEFT_MIXER_CTRL, WM8983_RIGHT_MIXER_CTRL, 6, 7, 0, 279 aux_tlv), 280 281 SOC_DOUBLE_R_TLV("Input PGA Bypass Volume", 282 WM8983_LEFT_MIXER_CTRL, WM8983_RIGHT_MIXER_CTRL, 2, 7, 0, 283 bypass_tlv), 284 285 SOC_ENUM_EXT("Equalizer Function", eqmode, eqmode_get, eqmode_put), 286 SOC_ENUM("EQ1 Cutoff", eq1_cutoff), 287 SOC_SINGLE_TLV("EQ1 Volume", WM8983_EQ1_LOW_SHELF, 0, 24, 1, eq_tlv), 288 SOC_ENUM("EQ2 Bandwidth", eq2_bw), 289 SOC_ENUM("EQ2 Cutoff", eq2_cutoff), 290 SOC_SINGLE_TLV("EQ2 Volume", WM8983_EQ2_PEAK_1, 0, 24, 1, eq_tlv), 291 SOC_ENUM("EQ3 Bandwidth", eq3_bw), 292 SOC_ENUM("EQ3 Cutoff", eq3_cutoff), 293 SOC_SINGLE_TLV("EQ3 Volume", WM8983_EQ3_PEAK_2, 0, 24, 1, eq_tlv), 294 SOC_ENUM("EQ4 Bandwidth", eq4_bw), 295 SOC_ENUM("EQ4 Cutoff", eq4_cutoff), 296 SOC_SINGLE_TLV("EQ4 Volume", WM8983_EQ4_PEAK_3, 0, 24, 1, eq_tlv), 297 SOC_ENUM("EQ5 Cutoff", eq5_cutoff), 298 SOC_SINGLE_TLV("EQ5 Volume", WM8983_EQ5_HIGH_SHELF, 0, 24, 1, eq_tlv), 299 300 SOC_ENUM("3D Depth", depth_3d), 301 }; 302 303 static const struct snd_kcontrol_new left_out_mixer[] = { 304 SOC_DAPM_SINGLE("Line Switch", WM8983_LEFT_MIXER_CTRL, 1, 1, 0), 305 SOC_DAPM_SINGLE("Aux Switch", WM8983_LEFT_MIXER_CTRL, 5, 1, 0), 306 SOC_DAPM_SINGLE("PCM Switch", WM8983_LEFT_MIXER_CTRL, 0, 1, 0), 307 }; 308 309 static const struct snd_kcontrol_new right_out_mixer[] = { 310 SOC_DAPM_SINGLE("Line Switch", WM8983_RIGHT_MIXER_CTRL, 1, 1, 0), 311 SOC_DAPM_SINGLE("Aux Switch", WM8983_RIGHT_MIXER_CTRL, 5, 1, 0), 312 SOC_DAPM_SINGLE("PCM Switch", WM8983_RIGHT_MIXER_CTRL, 0, 1, 0), 313 }; 314 315 static const struct snd_kcontrol_new left_input_mixer[] = { 316 SOC_DAPM_SINGLE("L2 Switch", WM8983_INPUT_CTRL, 2, 1, 0), 317 SOC_DAPM_SINGLE("MicN Switch", WM8983_INPUT_CTRL, 1, 1, 0), 318 SOC_DAPM_SINGLE("MicP Switch", WM8983_INPUT_CTRL, 0, 1, 0), 319 }; 320 321 static const struct snd_kcontrol_new right_input_mixer[] = { 322 SOC_DAPM_SINGLE("R2 Switch", WM8983_INPUT_CTRL, 6, 1, 0), 323 SOC_DAPM_SINGLE("MicN Switch", WM8983_INPUT_CTRL, 5, 1, 0), 324 SOC_DAPM_SINGLE("MicP Switch", WM8983_INPUT_CTRL, 4, 1, 0), 325 }; 326 327 static const struct snd_kcontrol_new left_boost_mixer[] = { 328 SOC_DAPM_SINGLE_TLV("L2 Volume", WM8983_LEFT_ADC_BOOST_CTRL, 329 4, 7, 0, boost_tlv), 330 SOC_DAPM_SINGLE_TLV("AUXL Volume", WM8983_LEFT_ADC_BOOST_CTRL, 331 0, 7, 0, boost_tlv) 332 }; 333 334 static const struct snd_kcontrol_new out3_mixer[] = { 335 SOC_DAPM_SINGLE("LMIX2OUT3 Switch", WM8983_OUT3_MIXER_CTRL, 336 1, 1, 0), 337 SOC_DAPM_SINGLE("LDAC2OUT3 Switch", WM8983_OUT3_MIXER_CTRL, 338 0, 1, 0), 339 }; 340 341 static const struct snd_kcontrol_new out4_mixer[] = { 342 SOC_DAPM_SINGLE("LMIX2OUT4 Switch", WM8983_OUT4_MONO_MIX_CTRL, 343 4, 1, 0), 344 SOC_DAPM_SINGLE("RMIX2OUT4 Switch", WM8983_OUT4_MONO_MIX_CTRL, 345 1, 1, 0), 346 SOC_DAPM_SINGLE("LDAC2OUT4 Switch", WM8983_OUT4_MONO_MIX_CTRL, 347 3, 1, 0), 348 SOC_DAPM_SINGLE("RDAC2OUT4 Switch", WM8983_OUT4_MONO_MIX_CTRL, 349 0, 1, 0), 350 }; 351 352 static const struct snd_kcontrol_new right_boost_mixer[] = { 353 SOC_DAPM_SINGLE_TLV("R2 Volume", WM8983_RIGHT_ADC_BOOST_CTRL, 354 4, 7, 0, boost_tlv), 355 SOC_DAPM_SINGLE_TLV("AUXR Volume", WM8983_RIGHT_ADC_BOOST_CTRL, 356 0, 7, 0, boost_tlv) 357 }; 358 359 static const struct snd_soc_dapm_widget wm8983_dapm_widgets[] = { 360 SND_SOC_DAPM_DAC("Left DAC", "Left Playback", WM8983_POWER_MANAGEMENT_3, 361 0, 0), 362 SND_SOC_DAPM_DAC("Right DAC", "Right Playback", WM8983_POWER_MANAGEMENT_3, 363 1, 0), 364 SND_SOC_DAPM_ADC("Left ADC", "Left Capture", WM8983_POWER_MANAGEMENT_2, 365 0, 0), 366 SND_SOC_DAPM_ADC("Right ADC", "Right Capture", WM8983_POWER_MANAGEMENT_2, 367 1, 0), 368 369 SND_SOC_DAPM_MIXER("Left Output Mixer", WM8983_POWER_MANAGEMENT_3, 370 2, 0, left_out_mixer, ARRAY_SIZE(left_out_mixer)), 371 SND_SOC_DAPM_MIXER("Right Output Mixer", WM8983_POWER_MANAGEMENT_3, 372 3, 0, right_out_mixer, ARRAY_SIZE(right_out_mixer)), 373 374 SND_SOC_DAPM_MIXER("Left Input Mixer", WM8983_POWER_MANAGEMENT_2, 375 2, 0, left_input_mixer, ARRAY_SIZE(left_input_mixer)), 376 SND_SOC_DAPM_MIXER("Right Input Mixer", WM8983_POWER_MANAGEMENT_2, 377 3, 0, right_input_mixer, ARRAY_SIZE(right_input_mixer)), 378 379 SND_SOC_DAPM_MIXER("Left Boost Mixer", WM8983_POWER_MANAGEMENT_2, 380 4, 0, left_boost_mixer, ARRAY_SIZE(left_boost_mixer)), 381 SND_SOC_DAPM_MIXER("Right Boost Mixer", WM8983_POWER_MANAGEMENT_2, 382 5, 0, right_boost_mixer, ARRAY_SIZE(right_boost_mixer)), 383 384 SND_SOC_DAPM_MIXER("OUT3 Mixer", WM8983_POWER_MANAGEMENT_1, 385 6, 0, out3_mixer, ARRAY_SIZE(out3_mixer)), 386 387 SND_SOC_DAPM_MIXER("OUT4 Mixer", WM8983_POWER_MANAGEMENT_1, 388 7, 0, out4_mixer, ARRAY_SIZE(out4_mixer)), 389 390 SND_SOC_DAPM_PGA("Left Capture PGA", WM8983_LEFT_INP_PGA_GAIN_CTRL, 391 6, 1, NULL, 0), 392 SND_SOC_DAPM_PGA("Right Capture PGA", WM8983_RIGHT_INP_PGA_GAIN_CTRL, 393 6, 1, NULL, 0), 394 395 SND_SOC_DAPM_PGA("Left Headphone Out", WM8983_POWER_MANAGEMENT_2, 396 7, 0, NULL, 0), 397 SND_SOC_DAPM_PGA("Right Headphone Out", WM8983_POWER_MANAGEMENT_2, 398 8, 0, NULL, 0), 399 400 SND_SOC_DAPM_PGA("Left Speaker Out", WM8983_POWER_MANAGEMENT_3, 401 5, 0, NULL, 0), 402 SND_SOC_DAPM_PGA("Right Speaker Out", WM8983_POWER_MANAGEMENT_3, 403 6, 0, NULL, 0), 404 405 SND_SOC_DAPM_PGA("OUT3 Out", WM8983_POWER_MANAGEMENT_3, 406 7, 0, NULL, 0), 407 408 SND_SOC_DAPM_PGA("OUT4 Out", WM8983_POWER_MANAGEMENT_3, 409 8, 0, NULL, 0), 410 411 SND_SOC_DAPM_SUPPLY("Mic Bias", WM8983_POWER_MANAGEMENT_1, 4, 0, 412 NULL, 0), 413 414 SND_SOC_DAPM_INPUT("LIN"), 415 SND_SOC_DAPM_INPUT("LIP"), 416 SND_SOC_DAPM_INPUT("RIN"), 417 SND_SOC_DAPM_INPUT("RIP"), 418 SND_SOC_DAPM_INPUT("AUXL"), 419 SND_SOC_DAPM_INPUT("AUXR"), 420 SND_SOC_DAPM_INPUT("L2"), 421 SND_SOC_DAPM_INPUT("R2"), 422 SND_SOC_DAPM_OUTPUT("HPL"), 423 SND_SOC_DAPM_OUTPUT("HPR"), 424 SND_SOC_DAPM_OUTPUT("SPKL"), 425 SND_SOC_DAPM_OUTPUT("SPKR"), 426 SND_SOC_DAPM_OUTPUT("OUT3"), 427 SND_SOC_DAPM_OUTPUT("OUT4") 428 }; 429 430 static const struct snd_soc_dapm_route wm8983_audio_map[] = { 431 { "OUT3 Mixer", "LMIX2OUT3 Switch", "Left Output Mixer" }, 432 { "OUT3 Mixer", "LDAC2OUT3 Switch", "Left DAC" }, 433 434 { "OUT3 Out", NULL, "OUT3 Mixer" }, 435 { "OUT3", NULL, "OUT3 Out" }, 436 437 { "OUT4 Mixer", "LMIX2OUT4 Switch", "Left Output Mixer" }, 438 { "OUT4 Mixer", "RMIX2OUT4 Switch", "Right Output Mixer" }, 439 { "OUT4 Mixer", "LDAC2OUT4 Switch", "Left DAC" }, 440 { "OUT4 Mixer", "RDAC2OUT4 Switch", "Right DAC" }, 441 442 { "OUT4 Out", NULL, "OUT4 Mixer" }, 443 { "OUT4", NULL, "OUT4 Out" }, 444 445 { "Right Output Mixer", "PCM Switch", "Right DAC" }, 446 { "Right Output Mixer", "Aux Switch", "AUXR" }, 447 { "Right Output Mixer", "Line Switch", "Right Boost Mixer" }, 448 449 { "Left Output Mixer", "PCM Switch", "Left DAC" }, 450 { "Left Output Mixer", "Aux Switch", "AUXL" }, 451 { "Left Output Mixer", "Line Switch", "Left Boost Mixer" }, 452 453 { "Right Headphone Out", NULL, "Right Output Mixer" }, 454 { "HPR", NULL, "Right Headphone Out" }, 455 456 { "Left Headphone Out", NULL, "Left Output Mixer" }, 457 { "HPL", NULL, "Left Headphone Out" }, 458 459 { "Right Speaker Out", NULL, "Right Output Mixer" }, 460 { "SPKR", NULL, "Right Speaker Out" }, 461 462 { "Left Speaker Out", NULL, "Left Output Mixer" }, 463 { "SPKL", NULL, "Left Speaker Out" }, 464 465 { "Right ADC", NULL, "Right Boost Mixer" }, 466 467 { "Right Boost Mixer", "AUXR Volume", "AUXR" }, 468 { "Right Boost Mixer", NULL, "Right Capture PGA" }, 469 { "Right Boost Mixer", "R2 Volume", "R2" }, 470 471 { "Left ADC", NULL, "Left Boost Mixer" }, 472 473 { "Left Boost Mixer", "AUXL Volume", "AUXL" }, 474 { "Left Boost Mixer", NULL, "Left Capture PGA" }, 475 { "Left Boost Mixer", "L2 Volume", "L2" }, 476 477 { "Right Capture PGA", NULL, "Right Input Mixer" }, 478 { "Left Capture PGA", NULL, "Left Input Mixer" }, 479 480 { "Right Input Mixer", "R2 Switch", "R2" }, 481 { "Right Input Mixer", "MicN Switch", "RIN" }, 482 { "Right Input Mixer", "MicP Switch", "RIP" }, 483 484 { "Left Input Mixer", "L2 Switch", "L2" }, 485 { "Left Input Mixer", "MicN Switch", "LIN" }, 486 { "Left Input Mixer", "MicP Switch", "LIP" }, 487 }; 488 489 static int eqmode_get(struct snd_kcontrol *kcontrol, 490 struct snd_ctl_elem_value *ucontrol) 491 { 492 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); 493 unsigned int reg; 494 495 reg = snd_soc_component_read(component, WM8983_EQ1_LOW_SHELF); 496 if (reg & WM8983_EQ3DMODE) 497 ucontrol->value.enumerated.item[0] = 1; 498 else 499 ucontrol->value.enumerated.item[0] = 0; 500 501 return 0; 502 } 503 504 static int eqmode_put(struct snd_kcontrol *kcontrol, 505 struct snd_ctl_elem_value *ucontrol) 506 { 507 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); 508 unsigned int regpwr2, regpwr3; 509 unsigned int reg_eq; 510 511 if (ucontrol->value.enumerated.item[0] != 0 512 && ucontrol->value.enumerated.item[0] != 1) 513 return -EINVAL; 514 515 reg_eq = snd_soc_component_read(component, WM8983_EQ1_LOW_SHELF); 516 switch ((reg_eq & WM8983_EQ3DMODE) >> WM8983_EQ3DMODE_SHIFT) { 517 case 0: 518 if (!ucontrol->value.enumerated.item[0]) 519 return 0; 520 break; 521 case 1: 522 if (ucontrol->value.enumerated.item[0]) 523 return 0; 524 break; 525 } 526 527 regpwr2 = snd_soc_component_read(component, WM8983_POWER_MANAGEMENT_2); 528 regpwr3 = snd_soc_component_read(component, WM8983_POWER_MANAGEMENT_3); 529 /* disable the DACs and ADCs */ 530 snd_soc_component_update_bits(component, WM8983_POWER_MANAGEMENT_2, 531 WM8983_ADCENR_MASK | WM8983_ADCENL_MASK, 0); 532 snd_soc_component_update_bits(component, WM8983_POWER_MANAGEMENT_3, 533 WM8983_DACENR_MASK | WM8983_DACENL_MASK, 0); 534 /* set the desired eqmode */ 535 snd_soc_component_update_bits(component, WM8983_EQ1_LOW_SHELF, 536 WM8983_EQ3DMODE_MASK, 537 ucontrol->value.enumerated.item[0] 538 << WM8983_EQ3DMODE_SHIFT); 539 /* restore DAC/ADC configuration */ 540 snd_soc_component_write(component, WM8983_POWER_MANAGEMENT_2, regpwr2); 541 snd_soc_component_write(component, WM8983_POWER_MANAGEMENT_3, regpwr3); 542 return 0; 543 } 544 545 static bool wm8983_writeable(struct device *dev, unsigned int reg) 546 { 547 switch (reg) { 548 case WM8983_SOFTWARE_RESET ... WM8983_RIGHT_ADC_DIGITAL_VOL: 549 case WM8983_EQ1_LOW_SHELF ... WM8983_DAC_LIMITER_2: 550 case WM8983_NOTCH_FILTER_1 ... WM8983_NOTCH_FILTER_4: 551 case WM8983_ALC_CONTROL_1 ... WM8983_PLL_K_3: 552 case WM8983_3D_CONTROL ... WM8983_OUT4_MONO_MIX_CTRL: 553 case WM8983_BIAS_CTRL: 554 return true; 555 default: 556 return false; 557 } 558 } 559 560 static int wm8983_dac_mute(struct snd_soc_dai *dai, int mute, int direction) 561 { 562 struct snd_soc_component *component = dai->component; 563 564 return snd_soc_component_update_bits(component, WM8983_DAC_CONTROL, 565 WM8983_SOFTMUTE_MASK, 566 !!mute << WM8983_SOFTMUTE_SHIFT); 567 } 568 569 static int wm8983_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) 570 { 571 struct snd_soc_component *component = dai->component; 572 u16 format, master, bcp, lrp; 573 574 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { 575 case SND_SOC_DAIFMT_I2S: 576 format = 0x2; 577 break; 578 case SND_SOC_DAIFMT_RIGHT_J: 579 format = 0x0; 580 break; 581 case SND_SOC_DAIFMT_LEFT_J: 582 format = 0x1; 583 break; 584 case SND_SOC_DAIFMT_DSP_A: 585 case SND_SOC_DAIFMT_DSP_B: 586 format = 0x3; 587 break; 588 default: 589 dev_err(dai->dev, "Unknown dai format\n"); 590 return -EINVAL; 591 } 592 593 snd_soc_component_update_bits(component, WM8983_AUDIO_INTERFACE, 594 WM8983_FMT_MASK, format << WM8983_FMT_SHIFT); 595 596 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { 597 case SND_SOC_DAIFMT_CBM_CFM: 598 master = 1; 599 break; 600 case SND_SOC_DAIFMT_CBS_CFS: 601 master = 0; 602 break; 603 default: 604 dev_err(dai->dev, "Unknown master/slave configuration\n"); 605 return -EINVAL; 606 } 607 608 snd_soc_component_update_bits(component, WM8983_CLOCK_GEN_CONTROL, 609 WM8983_MS_MASK, master << WM8983_MS_SHIFT); 610 611 /* FIXME: We don't currently support DSP A/B modes */ 612 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { 613 case SND_SOC_DAIFMT_DSP_A: 614 case SND_SOC_DAIFMT_DSP_B: 615 dev_err(dai->dev, "DSP A/B modes are not supported\n"); 616 return -EINVAL; 617 default: 618 break; 619 } 620 621 bcp = lrp = 0; 622 switch (fmt & SND_SOC_DAIFMT_INV_MASK) { 623 case SND_SOC_DAIFMT_NB_NF: 624 break; 625 case SND_SOC_DAIFMT_IB_IF: 626 bcp = lrp = 1; 627 break; 628 case SND_SOC_DAIFMT_IB_NF: 629 bcp = 1; 630 break; 631 case SND_SOC_DAIFMT_NB_IF: 632 lrp = 1; 633 break; 634 default: 635 dev_err(dai->dev, "Unknown polarity configuration\n"); 636 return -EINVAL; 637 } 638 639 snd_soc_component_update_bits(component, WM8983_AUDIO_INTERFACE, 640 WM8983_LRCP_MASK, lrp << WM8983_LRCP_SHIFT); 641 snd_soc_component_update_bits(component, WM8983_AUDIO_INTERFACE, 642 WM8983_BCP_MASK, bcp << WM8983_BCP_SHIFT); 643 return 0; 644 } 645 646 static int wm8983_hw_params(struct snd_pcm_substream *substream, 647 struct snd_pcm_hw_params *params, 648 struct snd_soc_dai *dai) 649 { 650 int i; 651 struct snd_soc_component *component = dai->component; 652 struct wm8983_priv *wm8983 = snd_soc_component_get_drvdata(component); 653 u16 blen, srate_idx; 654 u32 tmp; 655 int srate_best; 656 int ret; 657 658 ret = snd_soc_params_to_bclk(params); 659 if (ret < 0) { 660 dev_err(component->dev, "Failed to convert params to bclk: %d\n", ret); 661 return ret; 662 } 663 664 wm8983->bclk = ret; 665 666 switch (params_width(params)) { 667 case 16: 668 blen = 0x0; 669 break; 670 case 20: 671 blen = 0x1; 672 break; 673 case 24: 674 blen = 0x2; 675 break; 676 case 32: 677 blen = 0x3; 678 break; 679 default: 680 dev_err(dai->dev, "Unsupported word length %u\n", 681 params_width(params)); 682 return -EINVAL; 683 } 684 685 snd_soc_component_update_bits(component, WM8983_AUDIO_INTERFACE, 686 WM8983_WL_MASK, blen << WM8983_WL_SHIFT); 687 688 /* 689 * match to the nearest possible sample rate and rely 690 * on the array index to configure the SR register 691 */ 692 srate_idx = 0; 693 srate_best = abs(srates[0] - params_rate(params)); 694 for (i = 1; i < ARRAY_SIZE(srates); ++i) { 695 if (abs(srates[i] - params_rate(params)) >= srate_best) 696 continue; 697 srate_idx = i; 698 srate_best = abs(srates[i] - params_rate(params)); 699 } 700 701 dev_dbg(dai->dev, "Selected SRATE = %d\n", srates[srate_idx]); 702 snd_soc_component_update_bits(component, WM8983_ADDITIONAL_CONTROL, 703 WM8983_SR_MASK, srate_idx << WM8983_SR_SHIFT); 704 705 dev_dbg(dai->dev, "Target BCLK = %uHz\n", wm8983->bclk); 706 dev_dbg(dai->dev, "SYSCLK = %uHz\n", wm8983->sysclk); 707 708 for (i = 0; i < ARRAY_SIZE(fs_ratios); ++i) { 709 if (wm8983->sysclk / params_rate(params) 710 == fs_ratios[i].ratio) 711 break; 712 } 713 714 if (i == ARRAY_SIZE(fs_ratios)) { 715 dev_err(dai->dev, "Unable to configure MCLK ratio %u/%u\n", 716 wm8983->sysclk, params_rate(params)); 717 return -EINVAL; 718 } 719 720 dev_dbg(dai->dev, "MCLK ratio = %dfs\n", fs_ratios[i].ratio); 721 snd_soc_component_update_bits(component, WM8983_CLOCK_GEN_CONTROL, 722 WM8983_MCLKDIV_MASK, i << WM8983_MCLKDIV_SHIFT); 723 724 /* select the appropriate bclk divider */ 725 tmp = (wm8983->sysclk / fs_ratios[i].div) * 10; 726 for (i = 0; i < ARRAY_SIZE(bclk_divs); ++i) { 727 if (wm8983->bclk == tmp / bclk_divs[i]) 728 break; 729 } 730 731 if (i == ARRAY_SIZE(bclk_divs)) { 732 dev_err(dai->dev, "No matching BCLK divider found\n"); 733 return -EINVAL; 734 } 735 736 dev_dbg(dai->dev, "BCLK div = %d\n", i); 737 snd_soc_component_update_bits(component, WM8983_CLOCK_GEN_CONTROL, 738 WM8983_BCLKDIV_MASK, i << WM8983_BCLKDIV_SHIFT); 739 740 return 0; 741 } 742 743 struct pll_div { 744 u32 div2:1; 745 u32 n:4; 746 u32 k:24; 747 }; 748 749 #define FIXED_PLL_SIZE ((1ULL << 24) * 10) 750 static int pll_factors(struct pll_div *pll_div, unsigned int target, 751 unsigned int source) 752 { 753 u64 Kpart; 754 unsigned long int K, Ndiv, Nmod; 755 756 pll_div->div2 = 0; 757 Ndiv = target / source; 758 if (Ndiv < 6) { 759 source >>= 1; 760 pll_div->div2 = 1; 761 Ndiv = target / source; 762 } 763 764 if (Ndiv < 6 || Ndiv > 12) { 765 printk(KERN_ERR "%s: WM8983 N value is not within" 766 " the recommended range: %lu\n", __func__, Ndiv); 767 return -EINVAL; 768 } 769 pll_div->n = Ndiv; 770 771 Nmod = target % source; 772 Kpart = FIXED_PLL_SIZE * (u64)Nmod; 773 774 do_div(Kpart, source); 775 776 K = Kpart & 0xffffffff; 777 if ((K % 10) >= 5) 778 K += 5; 779 K /= 10; 780 pll_div->k = K; 781 return 0; 782 } 783 784 static int wm8983_set_pll(struct snd_soc_dai *dai, int pll_id, 785 int source, unsigned int freq_in, 786 unsigned int freq_out) 787 { 788 int ret; 789 struct snd_soc_component *component; 790 struct pll_div pll_div; 791 792 component = dai->component; 793 if (!freq_in || !freq_out) { 794 /* disable the PLL */ 795 snd_soc_component_update_bits(component, WM8983_POWER_MANAGEMENT_1, 796 WM8983_PLLEN_MASK, 0); 797 return 0; 798 } else { 799 ret = pll_factors(&pll_div, freq_out * 4 * 2, freq_in); 800 if (ret) 801 return ret; 802 803 /* disable the PLL before re-programming it */ 804 snd_soc_component_update_bits(component, WM8983_POWER_MANAGEMENT_1, 805 WM8983_PLLEN_MASK, 0); 806 807 /* set PLLN and PRESCALE */ 808 snd_soc_component_write(component, WM8983_PLL_N, 809 (pll_div.div2 << WM8983_PLL_PRESCALE_SHIFT) 810 | pll_div.n); 811 /* set PLLK */ 812 snd_soc_component_write(component, WM8983_PLL_K_3, pll_div.k & 0x1ff); 813 snd_soc_component_write(component, WM8983_PLL_K_2, (pll_div.k >> 9) & 0x1ff); 814 snd_soc_component_write(component, WM8983_PLL_K_1, (pll_div.k >> 18)); 815 /* enable the PLL */ 816 snd_soc_component_update_bits(component, WM8983_POWER_MANAGEMENT_1, 817 WM8983_PLLEN_MASK, WM8983_PLLEN); 818 } 819 820 return 0; 821 } 822 823 static int wm8983_set_sysclk(struct snd_soc_dai *dai, 824 int clk_id, unsigned int freq, int dir) 825 { 826 struct snd_soc_component *component = dai->component; 827 struct wm8983_priv *wm8983 = snd_soc_component_get_drvdata(component); 828 829 switch (clk_id) { 830 case WM8983_CLKSRC_MCLK: 831 snd_soc_component_update_bits(component, WM8983_CLOCK_GEN_CONTROL, 832 WM8983_CLKSEL_MASK, 0); 833 break; 834 case WM8983_CLKSRC_PLL: 835 snd_soc_component_update_bits(component, WM8983_CLOCK_GEN_CONTROL, 836 WM8983_CLKSEL_MASK, WM8983_CLKSEL); 837 break; 838 default: 839 dev_err(dai->dev, "Unknown clock source: %d\n", clk_id); 840 return -EINVAL; 841 } 842 843 wm8983->sysclk = freq; 844 return 0; 845 } 846 847 static int wm8983_set_bias_level(struct snd_soc_component *component, 848 enum snd_soc_bias_level level) 849 { 850 struct wm8983_priv *wm8983 = snd_soc_component_get_drvdata(component); 851 int ret; 852 853 switch (level) { 854 case SND_SOC_BIAS_ON: 855 case SND_SOC_BIAS_PREPARE: 856 /* VMID at 100k */ 857 snd_soc_component_update_bits(component, WM8983_POWER_MANAGEMENT_1, 858 WM8983_VMIDSEL_MASK, 859 1 << WM8983_VMIDSEL_SHIFT); 860 break; 861 case SND_SOC_BIAS_STANDBY: 862 if (snd_soc_component_get_bias_level(component) == SND_SOC_BIAS_OFF) { 863 ret = regcache_sync(wm8983->regmap); 864 if (ret < 0) { 865 dev_err(component->dev, "Failed to sync cache: %d\n", ret); 866 return ret; 867 } 868 /* enable anti-pop features */ 869 snd_soc_component_update_bits(component, WM8983_OUT4_TO_ADC, 870 WM8983_POBCTRL_MASK | WM8983_DELEN_MASK, 871 WM8983_POBCTRL | WM8983_DELEN); 872 /* enable thermal shutdown */ 873 snd_soc_component_update_bits(component, WM8983_OUTPUT_CTRL, 874 WM8983_TSDEN_MASK, WM8983_TSDEN); 875 /* enable BIASEN */ 876 snd_soc_component_update_bits(component, WM8983_POWER_MANAGEMENT_1, 877 WM8983_BIASEN_MASK, WM8983_BIASEN); 878 /* VMID at 100k */ 879 snd_soc_component_update_bits(component, WM8983_POWER_MANAGEMENT_1, 880 WM8983_VMIDSEL_MASK, 881 1 << WM8983_VMIDSEL_SHIFT); 882 msleep(250); 883 /* disable anti-pop features */ 884 snd_soc_component_update_bits(component, WM8983_OUT4_TO_ADC, 885 WM8983_POBCTRL_MASK | 886 WM8983_DELEN_MASK, 0); 887 } 888 889 /* VMID at 500k */ 890 snd_soc_component_update_bits(component, WM8983_POWER_MANAGEMENT_1, 891 WM8983_VMIDSEL_MASK, 892 2 << WM8983_VMIDSEL_SHIFT); 893 break; 894 case SND_SOC_BIAS_OFF: 895 /* disable thermal shutdown */ 896 snd_soc_component_update_bits(component, WM8983_OUTPUT_CTRL, 897 WM8983_TSDEN_MASK, 0); 898 /* disable VMIDSEL and BIASEN */ 899 snd_soc_component_update_bits(component, WM8983_POWER_MANAGEMENT_1, 900 WM8983_VMIDSEL_MASK | WM8983_BIASEN_MASK, 901 0); 902 /* wait for VMID to discharge */ 903 msleep(100); 904 snd_soc_component_write(component, WM8983_POWER_MANAGEMENT_1, 0); 905 snd_soc_component_write(component, WM8983_POWER_MANAGEMENT_2, 0); 906 snd_soc_component_write(component, WM8983_POWER_MANAGEMENT_3, 0); 907 break; 908 } 909 910 return 0; 911 } 912 913 static int wm8983_probe(struct snd_soc_component *component) 914 { 915 int ret; 916 int i; 917 918 ret = snd_soc_component_write(component, WM8983_SOFTWARE_RESET, 0); 919 if (ret < 0) { 920 dev_err(component->dev, "Failed to issue reset: %d\n", ret); 921 return ret; 922 } 923 924 /* set the vol/gain update bits */ 925 for (i = 0; i < ARRAY_SIZE(vol_update_regs); ++i) 926 snd_soc_component_update_bits(component, vol_update_regs[i], 927 0x100, 0x100); 928 929 /* mute all outputs and set PGAs to minimum gain */ 930 for (i = WM8983_LOUT1_HP_VOLUME_CTRL; 931 i <= WM8983_OUT4_MONO_MIX_CTRL; ++i) 932 snd_soc_component_update_bits(component, i, 0x40, 0x40); 933 934 /* enable soft mute */ 935 snd_soc_component_update_bits(component, WM8983_DAC_CONTROL, 936 WM8983_SOFTMUTE_MASK, 937 WM8983_SOFTMUTE); 938 939 /* enable BIASCUT */ 940 snd_soc_component_update_bits(component, WM8983_BIAS_CTRL, 941 WM8983_BIASCUT, WM8983_BIASCUT); 942 return 0; 943 } 944 945 static const struct snd_soc_dai_ops wm8983_dai_ops = { 946 .mute_stream = wm8983_dac_mute, 947 .hw_params = wm8983_hw_params, 948 .set_fmt = wm8983_set_fmt, 949 .set_sysclk = wm8983_set_sysclk, 950 .set_pll = wm8983_set_pll, 951 .no_capture_mute = 1, 952 }; 953 954 #define WM8983_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \ 955 SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE) 956 957 static struct snd_soc_dai_driver wm8983_dai = { 958 .name = "wm8983-hifi", 959 .playback = { 960 .stream_name = "Playback", 961 .channels_min = 2, 962 .channels_max = 2, 963 .rates = SNDRV_PCM_RATE_8000_48000, 964 .formats = WM8983_FORMATS, 965 }, 966 .capture = { 967 .stream_name = "Capture", 968 .channels_min = 2, 969 .channels_max = 2, 970 .rates = SNDRV_PCM_RATE_8000_48000, 971 .formats = WM8983_FORMATS, 972 }, 973 .ops = &wm8983_dai_ops, 974 .symmetric_rate = 1 975 }; 976 977 static const struct snd_soc_component_driver soc_component_dev_wm8983 = { 978 .probe = wm8983_probe, 979 .set_bias_level = wm8983_set_bias_level, 980 .controls = wm8983_snd_controls, 981 .num_controls = ARRAY_SIZE(wm8983_snd_controls), 982 .dapm_widgets = wm8983_dapm_widgets, 983 .num_dapm_widgets = ARRAY_SIZE(wm8983_dapm_widgets), 984 .dapm_routes = wm8983_audio_map, 985 .num_dapm_routes = ARRAY_SIZE(wm8983_audio_map), 986 .suspend_bias_off = 1, 987 .idle_bias_on = 1, 988 .use_pmdown_time = 1, 989 .endianness = 1, 990 }; 991 992 static const struct regmap_config wm8983_regmap = { 993 .reg_bits = 7, 994 .val_bits = 9, 995 996 .reg_defaults = wm8983_defaults, 997 .num_reg_defaults = ARRAY_SIZE(wm8983_defaults), 998 .cache_type = REGCACHE_RBTREE, 999 .max_register = WM8983_MAX_REGISTER, 1000 1001 .writeable_reg = wm8983_writeable, 1002 }; 1003 1004 #if defined(CONFIG_SPI_MASTER) 1005 static int wm8983_spi_probe(struct spi_device *spi) 1006 { 1007 struct wm8983_priv *wm8983; 1008 int ret; 1009 1010 wm8983 = devm_kzalloc(&spi->dev, sizeof *wm8983, GFP_KERNEL); 1011 if (!wm8983) 1012 return -ENOMEM; 1013 1014 wm8983->regmap = devm_regmap_init_spi(spi, &wm8983_regmap); 1015 if (IS_ERR(wm8983->regmap)) { 1016 ret = PTR_ERR(wm8983->regmap); 1017 dev_err(&spi->dev, "Failed to init regmap: %d\n", ret); 1018 return ret; 1019 } 1020 1021 spi_set_drvdata(spi, wm8983); 1022 1023 ret = devm_snd_soc_register_component(&spi->dev, 1024 &soc_component_dev_wm8983, &wm8983_dai, 1); 1025 return ret; 1026 } 1027 1028 static struct spi_driver wm8983_spi_driver = { 1029 .driver = { 1030 .name = "wm8983", 1031 }, 1032 .probe = wm8983_spi_probe, 1033 }; 1034 #endif 1035 1036 #if IS_ENABLED(CONFIG_I2C) 1037 static int wm8983_i2c_probe(struct i2c_client *i2c) 1038 { 1039 struct wm8983_priv *wm8983; 1040 int ret; 1041 1042 wm8983 = devm_kzalloc(&i2c->dev, sizeof *wm8983, GFP_KERNEL); 1043 if (!wm8983) 1044 return -ENOMEM; 1045 1046 wm8983->regmap = devm_regmap_init_i2c(i2c, &wm8983_regmap); 1047 if (IS_ERR(wm8983->regmap)) { 1048 ret = PTR_ERR(wm8983->regmap); 1049 dev_err(&i2c->dev, "Failed to init regmap: %d\n", ret); 1050 return ret; 1051 } 1052 1053 i2c_set_clientdata(i2c, wm8983); 1054 1055 ret = devm_snd_soc_register_component(&i2c->dev, 1056 &soc_component_dev_wm8983, &wm8983_dai, 1); 1057 1058 return ret; 1059 } 1060 1061 static const struct i2c_device_id wm8983_i2c_id[] = { 1062 { "wm8983", 0 }, 1063 { } 1064 }; 1065 MODULE_DEVICE_TABLE(i2c, wm8983_i2c_id); 1066 1067 static struct i2c_driver wm8983_i2c_driver = { 1068 .driver = { 1069 .name = "wm8983", 1070 }, 1071 .probe_new = wm8983_i2c_probe, 1072 .id_table = wm8983_i2c_id 1073 }; 1074 #endif 1075 1076 static int __init wm8983_modinit(void) 1077 { 1078 int ret = 0; 1079 1080 #if IS_ENABLED(CONFIG_I2C) 1081 ret = i2c_add_driver(&wm8983_i2c_driver); 1082 if (ret) { 1083 printk(KERN_ERR "Failed to register wm8983 I2C driver: %d\n", 1084 ret); 1085 } 1086 #endif 1087 #if defined(CONFIG_SPI_MASTER) 1088 ret = spi_register_driver(&wm8983_spi_driver); 1089 if (ret != 0) { 1090 printk(KERN_ERR "Failed to register wm8983 SPI driver: %d\n", 1091 ret); 1092 } 1093 #endif 1094 return ret; 1095 } 1096 module_init(wm8983_modinit); 1097 1098 static void __exit wm8983_exit(void) 1099 { 1100 #if IS_ENABLED(CONFIG_I2C) 1101 i2c_del_driver(&wm8983_i2c_driver); 1102 #endif 1103 #if defined(CONFIG_SPI_MASTER) 1104 spi_unregister_driver(&wm8983_spi_driver); 1105 #endif 1106 } 1107 module_exit(wm8983_exit); 1108 1109 MODULE_DESCRIPTION("ASoC WM8983 driver"); 1110 MODULE_AUTHOR("Dimitris Papastamos <dp@opensource.wolfsonmicro.com>"); 1111 MODULE_LICENSE("GPL"); 1112